This gene encodes a protein that is associated with
adenosine triphosphatases (ATPases). Proton-translocating ATPases
have fundamental roles in energy conservation, secondary active
transport, acidification of intracellular compartments, and
cellular pH homeostasis. There are three classes of ATPases- F, P,
and V. The vacuolar (V-type) ATPases have a transmembrane
proton-conducting sector and an extramembrane catalytic sector. The
encoded protein has been found associated with the transmembrane
sector of the V-type ATPases.